void clicked()
{
EventSystem.current.SetSelectedGameObject(null);
CannonControlState newState = cannonScript.cannonControlStateToggled();
if (newState == CannonControlState.Translate)
{
sourceImage.sprite = translateSprite;
}
else if (newState == CannonControlState.RotateNozzle)
{
sourceImage.sprite = rotateNozzleSprite;
}
}
